An instrument which measures the level of continuous noise present in amplifier and/or receiver circuits with reference to a fixed level of signal generated by a separate noise source. It is designed to measure noise levels over a wide band of frequencies including radio and video frequencies, and is normally calibrated in decibels relative to a specified r.M.S. Voltage summation across a specified impedance, or in decibels relative to a specified noise power level. if only audio frequency range, see meter, audio level.
Classification: Instruments and apparatus without a recording device specially designed for telecommunications, nesoi
NSN 5905-00-017-1417
NSN 5975-00-117-0826
NSN 5990-00-495-2859
NSN 5915-01-556-4282
NSN 6220-00-403-3444
NSN 5925-01-272-9577
NSN 5915-00-283-8670
NSN 5975-00-008-2739
NSN 6150-01-532-2673
NSN 5975-01-315-7951
NSN 6135-01-329-7994
NSN 6610-00-360-2713